University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2019
Views:

464

Pages:

1
Author:

FrextWhestembki

COSMOS: Complete Online Solutions Manual Organization System Chapter 9, Solution 75. Have Now symmetry implies ( )1 + ( I xy )2 + ( I xy )3 I xy = I xy ( I xy )1 = 0 and for the other rectangles I xy = I x′y′ + x y A Thus I xy = ( x y A)2 + ( x y A)3 where I x′y′ = 0 (symmetry) = ( − 69 mm )( − 25 mm ) (12 mm )( 38 mm )  + ( 69 mm )( 25 mm ) (12 mm )( 38 mm )  = ( 786 600 + 786 600 ) mm 4 = 1 573 200 mm 4 or I xy = 1.573 × 106 mm 4

COSMOS Chapter 9 Solution 75

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